Pregnant women who are controlling sugar are advised to eat less or no lychee. Although lychee contains certain vitamins, citric acid, phosphorus, iron, calcium, carotene and other nutrients, but its glycemic index is high, 70, belongs to the high glycemic index food, so pregnant women who are controlling sugar are recommended to eat less or not eat lychee, especially for unstable blood glucose control of pregnant women is not recommended to eat lychee. Moreover, pregnant women who are controlling sugar should maintain a low-sugar, low-fat diet and avoid eating high-sugar foods such as cakes, milk tea, chocolate and cookies. Pregnant women who need to control sugar should maintain a healthy diet, if diet and exercise cannot control blood sugar, it is recommended to use medication under the guidance of a doctor.